Finding the Fourth Proportional to 678,073.08, 935,746.38 and 376,272.12
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Solution
The fourth proportional to 678,073.08, 935,746.38 and 376,272.12 is: 519,258.59
Step by Step Solution
- Step 1: Write the proportion equation
678,073.08 : 935,746.38 = 376,272.12 : x - Step 2: Convert to fraction form
678,073.08/935,746.38 = 376,272.12/x - Step 3: Cross multiply
678,073.08x = 935,746.38 × 376,272.12 - Step 4: Simplify right side
678,073.08x = 352,095,274,184.93 - Step 5: Solve for x
x = 352,095,274,184.93/678,073.08 - Step 6: Final answer
x = 519,258.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.